37results about How to "Eliminate restlessness" patented technology

The invention relates to an angle-adjustable nursing mattress, which comprises a mattress body. The mattress body includes at least two saturated mattress bodies and a folding portion that is continuously arranged between two adjacent saturated mattress bodies and contains several compressive ridges that run through the mattress body in the height direction; Wherein, several ridges are bent or unfolded along the plane where at least one saturated pad is located based on the displacement of at least one saturated pad that is not parallel to the plane where at least one saturated pad is located, so that at least one saturated pad can be aligned with the adjacent saturated pad The body forms an angle; the angle can be adjusted according to the change of the displacement. Therefore, the present invention adopts an integrated flattened mattress surface, which eliminates the discomfort caused by the discontinuous gap between the mattresses when the mattress is turned over, and can improve the psychological pressure and environmental impact of long-term bedridden patients. Facilitate the recovery process of patients.

The invention discloses a downhole operation well fluid balance buffering method and a multifunctional buffering fluid valve applicable to multiple processes of oilfield downhole operation field construction. According to the downhole operation well fluid balance buffering method, one buffering fluid valve is connected to the upper portion of a drift size gauge tool or other downhole operation tool in a downhole operation string, speed of well fluid entering the inside of an oil pipe in the process of lowering of the down-hole string is effectively controlled, fluid level in the oil pipe is allowed to be lower than that in a casing, pressure in the oil pipe is enabled to be basically kept in balance with the pressure in the casing, and the well fluid is prevented from spattering from the oil pipe to the ground. The fluid valve comprises a working barrel connected with a pressing cap, and a bidirectional fluid control device is mounted in the working barrel. The fluid levels in a shaft can be kept in balance, the oil pipe is prevented from injection and overflow in the lowering process of the oil pipe string, cleanliness and sanitation are realized, and operation is facilitated. Meanwhile, requirements on conventional and inverse well flushing are met, slurry is ensured to be displaced completely, an oil layer is protected against secondary damage, and technical problems perplexing production for a long time are solved.

The invention provides a high-speed chip mounting head, which comprises a mounting head bracket, a plurality of chip mounting shafts installed in the mounting head bracket, a Z-direction lifting mechanism, an R-direction turning mechanism and a vacuum module, and is characterized in that the reverse side of the upper part of the mounting head bracket is provided with an integrated control assembly, the obverse side of the upper part of the mounting head bracket is provided with the vacuum module, the middle part of the obverse side of head mounting bracket is provided with an R-direction stepping motor used for driving the R-direction turning mechanism and a CCD camera used for acquiring images, the reverse side of the head mounting bracket is provided with an upper row of Z-direction driving motors and a lower-row of Z-direction driving motors, and output shafts of the Z-direction driving motors are perpendicular to a Z-axis. The beneficial effects are that the integrated control assembly is installed on the chip mounting head, and each suction nozzle uses a single vacuum suction pipe, so that suction control is more stable; an air pressure detection integrated module is installed at the bottom, negative pressure is directly connected to a converging and assembling board, and an external circuit is simple; and miniaturization and lightening of the chip mounting head are facilitated.